Andrew goodyear



waited tatra anni @illim- -ANDREW GOODYEAR, or lALB-10N, MICHIGAN.

Lette/rs Patent No. 94,201, dated Augustl', 1869.

IMPROVEMENT IN MACHINE FOR SHAPING- HUBS.

The Schedule referred to in these Letters Patent and making 'part of the same.

f and to the letters of reference marked thereon, and

being a part ofthis specification, in which- Figure 1 is a perspective view of my invention, andl Figure 2 is a vertical sectional view of the cutterwheel, showing the method of attaching the knives, @to

Like letters indicate I ikeparts in each figure. The object of this invention is to construct a machine, by means of which blocks orvbolts of Wood, from which lhubs are'to be turned, may be rough-hewn or shaped ready to be placed in the iinishing-Iathe.

r'lo accomplish this result, vI construct an lL-shaped frame, A, shown in fig. lof the accompanying drawings.

Upon the longer part of this frame, running in proper boxes, is .a transverse driving-shaft, B, driven ,by a belt on the pulley G.

-Upon- .the shaft 1 3 is rigidly secured' a wheel,'D,.

VSleeved upon the shaft, and bolted to the rim ofthe wheel D, an arm, E, the ends of jvhich, projecting beyond the rim of the wheel, 'are bent to an obtuse angle, in which are placed the knivesF.

G-is a similar arm, except that its outer end is bent further back, and the single knife H, at theend, cuts in the plane of motion ofthe Wheel. f

This arm is adjustable, in relation to the wheel, by means of. the set-screws I, tig. 2, in the rim 'of the Wheel..

K is a guide, on the transverse part. of the frame, upon which moves the sliding frame L, carrying the mandrel M, to which is secured the bevel-gear N, rotatedV by the pinion O, sleeved onthe shaft P, which,

in turn, is rotated by the ShaftB, through the pulleys Q and R, and belts S and T. Y

The shaft l receives a continuous rotary motion,

and is provided {vith a feather, U, for 'a portion of its length, engaging with a key-Way inthe pinion 0,'rotating the same when it is pressed forward, causing the mandrel to rotate slowly, and, when drawn back, to remainstationarv.

The taper end ofthe mandrel M, which may bemade Aof such sizes as will fit the holes in the various sizes,

of hubs, has a squaredr shank near its end, upon which slides a spur,A V, which isdriven into the bored block on vthe mandrel, and secures it iu position.

A`1ever, W, and handle, X, are attached to the' 'sliding frame L, for conveniently moving it forward and back. k

As vthe impact of they knives upon the block might spring or break the mandrel, a support, Y, is attached to the main frame in such a manner as to support the extreme Iend of the mandrel, when the same is moved forward, and the. knives are operating on .the block placed thereon.

A set-screw, Z, on thev frame, at the rear' of the sliding frame L, regulates its travel toward the Vcutters, and determines the size of the hub.

Having thus described my invention, I will now exn plain its operation The sliding frame L beingdrawn away from the cutters, the spur' V is removed from the mandrel, and a block of wood, previously bored, is placedthereon. The spur is then replaced on the, mandrel, and driven into the wood. By means ofthe lever W, the sliding frame is then moved forward, when the key-w`ay in the pinion O will engage with the feather on the shalt P, and thus communicate a slow rotary motion' to the mandrel. As it is fed up, the cutting-knives F and H, revolving with great speed, cut and trim 'ofi' the rough and irregular edgesrof the block, which, as it receives a rotary motion with the mandrel, is formed into nearly the shape of the hub, the knife H forming the bilge, andthe knives F the conical portion of the hub-block. The stop Z prevents the Vsliding frame from being fed up too far, andprevents too much cutting away of thematerial. The vhub being shaped, the sliding frame is withdrawn lily-means of the handle X, and lthe hub removed, ready to be placed in a proper lathe for finishing.

I am aware ofthe existence of the patentof Miles and Lane, MarchS, 1859, for a similar machine; and I do not, therefore,lay claim, broadly, to the general features cf my machine; but

What I claim as myvinvention, and desire to secure by Letters Patent, is-

The machine described, consisting essentially of the wheel D, with arms E G, and knives F H, the carriage L, and mandrel M, with 'spur V, support Y, gearing N 0, and stop Z, the whole being combined, arranged, and operated in the manner and for the purpose set forth.

' ANDREW GOODYEAR.

Vitnesses:

H. F. EBER'rs, L. C.'HYDE. 

